947919 Removing and Installing Rear Angle Sensor For Headlight Beam Adjustment

WM 947919 Removing and installing rear angle sensor for headlight beam adjustment

Tools





Technical values






Removing rear angle sensor for headlight beam adjustment

Information

- The angle sensors are installed together with the Bi-XENON headlights and the steel-spring running gear.

- An angle sensor is located at the front left and rear left in running gears with steel springs.

- The angle sensor is screwed to the suspension subframe and upper control arm.

1. Counter with an open-ended wrench on the two flats -1- and unscrew the fastening nuts -2-.





Loosening the angle sensor

2. Unscrew both fastening screws -3-.
3. Press the electric connector together -a- and pull it off.





Pulling off connector

Installing rear angle sensor for headlight beam adjustment

Information

If a new angle sensor has been installed for headlight beam adjustment (HBA), the headlights must be recalibrated using the Porsche System Tester. => 947919 Removing and installing rear angle sensor for headlight beam adjustment - section on "Calibrating"

1. Push electric plug onto angle sensor until the connector is felt to engage.





Inserting the connector

2. Engage angle sensor lever and position angle sensor.





Positioning and securing angle sensor

3. Tighten the fastening screws -3-. => Tightening torque: 3.25 ftlb.
4. Position the fastening nuts -2- , counter with an open-ended wrench on the two flats -1- and tighten the nuts. => Tightening torque: 6 ftlb.

If a new angle sensor has been installed for headlight beam adjustment (HBA), the headlights must be recalibrated with the Porsche System Tester.

Calibrating angle sensor for headlight beam adjustment

Information

- The angle sensors are installed together with the Bi-XENON headlights and the steel-spring running gear.

- An angle sensor is located at the front left and rear left in running gears with steel springs.

- The angle sensor is screwed to the suspension subframe and upper control arm.

With the vehicle standing on level ground:
1. Connect the Porsche System Tester to the vehicle and start the System Tester. Switch on ignition.
2. Select "Special functions" using the cursor keys.
3. Select "HBA left or right" using the cursor keys.

Under the "Calibration" menu item, the gas discharge lamp control unit is adapted to the current conditions relating to vehicle position. During calibration the existing vehicle position is stored as zero position.

Following calibration, the headlight setting must be checked and corrected if necessary.
4. Read out fault memory. If a fault is detected, use the PIWIS Tester 9718 (fault-controlled diagnosis).
5. Check headlight setting.